Count Theophylact of Orvieto

Count Theophylact of Orvieto (846-924) was the Count of Orvieto and the regent of the Papal States from 905 to 924, electing several popes.

Biography
Theophylact was born in 846 to the House of Tusculani, a dynasty of Catholic Italians. He was an official of Emperor Louis the Blind of the Holy Roman Empire, overthrowing Antipope Christopher in 904. He allied with Alberic I of Spoleto and placed Pope Sergius III in power, and after Sergius died in 905, he became the effective ruler of Rome, controlling the election of the next few popes. He installed Pope John X as pope due to his relation to him, and he aided him at the 915 battle at Garigliano against the Saracens. His daughter Marozia would go on to control Rome after his death in 924.